Sphene and Ludlamite Physical Properties

Sphene

Ludlamite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.1-3.2

1 7.18

1.5 Fracture

Not Available

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

Vitreous, pearly on cleavage

1.7 Mohs Hardness

Not Available3-4

2 10

1.8 Chemical Composition

Not Available

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sphene and Ludlamite Chemical Formula

While comparing Sphene and Ludlamite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Sphene and Ludlamite chemical formula.

Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sphene and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sphene and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphene and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Sphene is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.